Options:
- A. CnH2nO2n
- B. CnH2n
- C. CnH2nO
- D. CnH2nOn+1
View Answer
C. CnH2nO
Chemistry
Which one of the following gives white precipitate with aqueous solution of BaCl2?
Options:
- A. NaHCO3
- B. NaNO3
- C. Na2CO3
- D. Na2CrO4
View Answer
C. Na2CO3
Which one of the following substances conducts electricity by the movement of ions ?
Options:
- A. Graphite
- B. Copper
- C. Molten sodium chloride
- D. Mercury
View Answer
C. Molten sodium chloride
The resonance energy of benzene is__________________?
Options:
- A. 150.5 kJ/mol
- B. 250.5 kJ/mol
- C. 150.5 Cal/mol
- D. 250.5 Cal/mol
View Answer
A. 150.5 kJ/mol
Which one of the following sets consists of all coinage metals ?
Options:
- A. Cu Hg Au
- B. Cu Ag Au
- C. Ag Au Hg
- D. Cu Fe Au
View Answer
B. Cu Ag Au
The scientist who did not contribute in the construction of periodic table ?
Options:
- A. Al-Razi
- B. Moseley
- C. Dobereiner
- D. Democritus
View Answer
D. Democritus
Oxidation state of an atom represents____________________?
Options:
- A. Number of electrons gained
- B. Number of electrons lost
- C. Apparent charge in compound
- D. Its vacancies
View Answer
C. Apparent charge in compound
Which of the following is not an ester_________________?
Options:
- A. amyl acetate
- B. sodium butyrate
- C. isobutyle formate
- D. octyl acetate
View Answer
B. sodium butyrate
Carboxylic acid on reduction with HI / phosphorous yields_________________?
Options:
- A. alkane
- B. alcohols
- C. aldehydes
- D. ketones
View Answer
A. alkane
Acetal on acid hydrolysis generates__________________?
Options:
- A. Alcohol
- B. Ketone
- C. Both A & B
- D. None of the above
View Answer
C. Both A & B